In 1832, 57 Irish Catholic workers were brought to the United States to lay one of the most difficult miles of American railway, Duffy's Cut of the Pennsylvania Railroad. These men were chosen because, in the eyes of the railroad company that hired them, they were expendable. Deaths were common during the building of the railway but this stretch was worse than most. When cholera swept the camp basic medical attention and community support was denied to them. In the end all 57 men--the entire work crew--died and were buried in a mass unmarked grave. Their families in Ireland were never...